From 971da213a390d06e61322245ca3f8b01220bd137 Mon Sep 17 00:00:00 2001
From: peterkinamo <peter@kinamo.be>
Date: Fri, 3 Aug 2018 12:28:23 +0200
Subject: [PATCH] Ascii rule added Ascii unit test added

---
 src/Valitron/Validator.php      | 18 ++++++++++++++++++
 tests/Valitron/ValidateTest.php | 14 ++++++++++++++
 2 files changed, 32 insertions(+)

diff --git a/src/Valitron/Validator.php b/src/Valitron/Validator.php
index 313d7e8..eff6d43 100644
--- a/src/Valitron/Validator.php
+++ b/src/Valitron/Validator.php
@@ -505,6 +505,24 @@ class Validator
         return filter_var($value, \FILTER_VALIDATE_EMAIL) !== false;
     }
 
+    /**
+     * Validate that a field contains only ASCII characters
+     *
+     * @param $field
+     * @param $value
+     * @return bool|false|string
+     */
+    protected function validateAscii($field, $value)
+    {
+        // multibyte extension needed
+        if (function_exists('mb_detect_encoding')) {
+            return mb_detect_encoding($value, 'ASCII', true);
+        }
+
+        // fallback with regex
+        return 0 === preg_match('/[^\x00-\x7F]/', $value);
+    }
+
     /**
      * Validate that a field is a valid e-mail address and the domain name is active
      *
diff --git a/tests/Valitron/ValidateTest.php b/tests/Valitron/ValidateTest.php
index 4cf5b59..d77634b 100644
--- a/tests/Valitron/ValidateTest.php
+++ b/tests/Valitron/ValidateTest.php
@@ -617,6 +617,20 @@ class ValidateTest extends BaseTestCase
         $this->assertFalse($v->validate());
     }
 
+    public function testAsciiValid()
+    {
+        $v = new Validator(array('text' => '12345 abcde'));
+        $v->rule('ascii', 'text');
+        $this->assertTrue($v->validate());
+    }
+
+    public function testAsciiInvalid()
+    {
+        $v = new Validator(array('text' => '12345 abcdé'));
+        $v->rule('ascii', 'text');
+        $this->assertFalse($v->validate());
+    }
+
     public function testIpValid()
     {
         $v = new Validator(array('ip' => '127.0.0.1'));